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Paris, Calman Levy, 1880. 3 contemporary hcalf. Gilt backs. Backs somewhat worn. (4),413;(4),420;XXIII,416 pp. Printed on good thich vellum-paper. A few brownspots.

Paris, Eugène Lacroix, 1862. Small8vo and Royal8vo. Bound in 2 contemp. hcloth. Gilt spines with gilt lettering. A paperlabel pasted on upper part of spines. Stamp on title-pages. XI,311 pp. and Atlas with 25 folded engraved plates in 4to. Plates with a dampstain in upper right corner increasing towards end. First edition.

Wien, L.W.Seidel, 1850. Contamp. hcalf. Spine richly gilt. Spine a bit rubbed. XVI,324 pp. Internally fine and clean. This work introduces the so-called "Skoda's resonance". Skoda classified the various sound obtained on percussion according to their musical pitch and tone. "Skoda's resonance" is an importen diagnostics sign in pneumonia and pericardial effusion. (Garrison & Morton: 2676, listing the first edition from 1839).

Edinburgh, Balfour and Creech, 1773. 12mo. Contemp. full calf. Raised bands. Titlelabel with gilt lettering. Compartments gilt. (2),II,111 pp. On good paper. The last few leaves with some browning.

Fourth ed. Edinb.,.1835. Small8vo. Orig.full cloth. First inner hinge broken. 484 pp., 15 wood-engr.plts.a.1 engr.fold.map.

(Paris, Bertrand, ca. 1840). 29x40 cm. (billedflade). Originalt litografi trykt på kinapapir med brede marginer (Dessiné et lith. par A. Mayer). Prospekt af de basaltiske søjleformationer fra østsiden med ryttere og folk i forgrunden. Planche Nr. 76 fra Paul Gaimard: Voyage en Islande et au Groënland exécuté pendant les Années 1835 et 1836 sur la Corvette la Recherche. Paris, Arthur Betrand, 1842.

Kiöbenhavn, (uden trykker), 1756. Lille 4to. Samtidigt helldrbd. i flammet kalv. Rig rygforgyldning. Forgyldt skindtitel. Kobberstukket titelblad. 51 pp., 3 store kobberstukne vignetter. Trykt på fint skrivepapir. Stort, rent eksemplar. Uden portrætterne af Fr. III og Fr. IV. Historikeren Caspar Paludan-Müllers eksemplar. Dette smukke antikva-tryk er et af rokokkotidens højdepunkter i dansk bogtrykkerkunst. - Birkelund nr. 112.

København, Fr. Brummer, 1825. Samt. hldrbd. Rygforgyldning. Tab af skind nederst del af ryg. Stempel på titelblad. XXIV,739 pp.

Leipzig, B. G. Teubner, 1890. 8vo. Bound in recent full black cloth with gilt lettering to spine. In "Mathematische Annalen", Volume 35., 1890. Entire volume offered. Library label pasted on to pasted down front free end-paper. Small library stamp to lower part of title title page and verso of title page. Very fine and clean. Pp. 495-526. [Entire volume: IV, 604 pp.]. First publication of the paper which named the "Pochhammer contour". Pochhammer contour is a contour in the complex plane with two points removed, used for contour integration.Camille Jordan published in 1887 a paper introducing the concept. In 1890 Porchhammer expanded his theories in the present paper.

(Paris), 1704. 8vo. In coloured paper wrapper over leather backstrip. Ex-libris (Juel to Valdemar's Castle) pasted on to verso of front wrapper. Wear to extrmeities, internally nice and clean. (8), 150, (2) pp.

Paris, De Feugueray, 1820. Uncut in orig. printed wrappers, partly unopened. In: "Annales de Chimie et de Physique, Par Gay-Lussac et Arago.", Tome XIII - Avril 1820. The whole issue: pp. 337-448. Laplace's paper: pp. 410-417. Fourier's paper:pp. 418-438. Both papers discusses the cooling of the earth in order to calculate the age of the earth.

Hannover, Helwing'sche, 1879. Lex8vo. Contemporary hcalf. Gilt. Back slightly rubbed. VIII,501 pp. and 13 maps.

Stockholm, Nordisk Rotogravyr, (1942-43). 4to. Smukt orig. hldrbd. med rygforgyldning. 245 pp. samt 283 plancher med talrige afbildninger.

Bruxelles, Adolphe Mertens, 1879. Royal8vo. 2 contemp. hcalf. Gilt spines. A paperlabel pasted on top of spines. Dedication from the author on first half-tile. (4),466;477 pp., textillustrations.

Wien, Militär-wissenschaftlichen Vereines, 1875. Contemp. hcloth. paperlabel pasted on upper part of spine. Stamp on title-page. 67 pp., 4 folded plates. (Separat-Abdruck aus dem Organ des Wiener militär-wissenschaftlichen Vereines).

Paris, Flammarion, 1892. Royal8vo. Orig. full pictorial cloth. A small paperlabel pasted on back. XIV,(1),425 pp. and 35 plates. A few pencil underlinings.

Berlin, G. Reimer, 1837. 4to. In the original printed wrappers, without back strip. In "Journal für die reine und angewandte Mathematik", 16. band, Heft 1, 1837. Entire first heft offered. Fine and clean. Pp. 1-10. [Entire volume: 96 pp + 1 folded plate]. First printing of Möbius paper on the center of non-parallel forces. "... he introduced (for the first time, he thought) the use of vectorial addition and subtraction to represent velocities and forces and effectively showed the computational usefulness of that very ancient mathematical device, the epicycle." (DSB).

(Kjöbenhavn, Copenhagen, 1863). 4to. Unbound. Uncut and unopened with a slight miscolouring to top of title-page. Internally nice and clean. 95 pp. + three lithographic plates. First edition of Colding's contribution to water level in loops with constant water flow.His works with the construction of sewers were the cause of his studies of water movement in closed loops. This led him to the realization of the variation of the coefficient of resistance with flow velocity, a similar result reached by Julius Weisbach. While studying these topics he founded the principles which the later constructed sewage system in Copenhagen was based upon. He expanded the use of these studies to also encompass studies of the free water table forms and currents in the ocean. Ludvig August Colding (1815 - 1888) was a famous Danish engineer and physicist. He was originally educated as a carpenter but graduated as mechanical engineer in 1841. In 1845 he became water-inspector in Copenhagen and in 1847 he was also given the responsibility of the gas- and waterworks. Together with the famous chemist Julius Thomsen, he proved that the cholera spread throughout Copenhagen through the drinking water (1853) - a most significant discovery. After this he was responsible replacing much of the sewer-system of Copenhagen. In 1857 he became state engineer. During this period he overhauled the desperately inadequate water and sanitation system. He articulated the principle of conservation of energy contemporaneously with, and independently of, James Prescott Joule and Julius Robert von Mayer though his contribution was largely overlooked and neglected.

Münchu. Wiesb., 1920. Lex8vo. Orig.frontwr. VI, 244 pp. First edition.

(London, W. Bulmer and Co., 1815). 4to. No wrappers as extracted from "Philosophical Transactions" 1815 - Part II. Pp. 270-292 and 1 engraved plate. First printing on an importent investigation of the double refraction phenomena in some crystals e.g. Icelandic spar, and describing an antichromatic instrument.Stitched together with this paper is a paper by Everard Home: "On the mode of generation of the lamprey and myxine." Pp. 265-269 a. 1 engraved plate.

Paris, Imprimerie Royale, 1827. Clothbacked boards. Gilt lettering on upper cover. Stamp on title-page. 45 pp.Offprint/Extrait from "Annales Maritimes et Coloniales. - 1827". Internally clean and fine.

København, 1911-15. Stort kvartformat (56 x 51 cm.). Samtidigt hshirtbd. De første kort er i øverste del en anelse krøllede efter fugt, men uden afsmitning af fugt.

(Paris, Mallet-Bachelier), 1860. 4to. No wrappers. In: "Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences", Tome 55, No 1. Pp. (5-) 67. (Entire issue offered). Friedel's paper: pp. 53-58. First apperance of the paper in which Charles Friedel described how he did the first preparation of isopropyl, the first secondary alcohol.Parkinson "Breakthroughs", 1862 C.

Karlsruhe und Freiburg, Herder'sche, 1843-47. 3 contemp. hcloth. Spines with gilt lettering. Stamps on title-pages. VIII,679,(1);(4),656;(4),570 pp. Lacks the Atlas with 19 plans/maps. Scattered brownspots.

(London, W. Bulmer and Co., 1814). 4to. No wrappers as extracted from "Philosophical Transactions" 1814 - Part I. Pp. 121-186 and 1 engraved plate.Clean and fine. First printing of a major paper by Ivory concerning the more difficult problems of calculating orbits of comets than the calculation of the orbits of planets."Ivory's scientific reputation, for which he was awarded many honours during his lifetime, including knighthood of the Order of the Guelphs, Civil Division (1831), was founded on the ability to understand and comment the work of the French analysts rather than any great originality of his own...Ivory's work, conducted with great industry over a long period, helped to foster in England a new interest in the application of analysis to physical problems." (DSB VII. p. 37).